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from tardis.workflows.v_inner_solver import InnerVelocitySolverWorkflow
from tardis.io.configuration.config_reader import Configuration

config = Configuration.from_yaml('../tardis_example.yml')

This code modifies the TARDIS example configuration to include convergence information for the inner boundary velocity solver. Note that the number of shells is increased and the starting velocity is reduced to provide more granularity and a wider search window, respectively.

from astropy import units as u

config.montecarlo.convergence_strategy['v_inner_boundary'] = {
    'damping_constant' : 0.5,
    'threshold' : 0.01,
    'type' : 'damped',
    'store_iteration_properties' : False
    }

config.montecarlo.convergence_strategy.stop_if_converged = True
config.model.structure.velocity.start = 5000 * u.km/u.s # Larger window over which to search
config.model.structure.velocity.num = 50 # Increase number of shells

workflow = InnerVelocitySolverWorkflow(
    config, tau=2.0/3,
    mean_optical_depth="rosseland"
)

[tardis.io.model.parse_atom_data][INFO   ]

        Reading Atomic Data from ../kurucz_cd23_chianti_H_He.h5 (parse_atom_data.py:40)
[tardis.io.atom_data.util][INFO   ]

        Atom Data kurucz_cd23_chianti_H_He.h5 not found in local path.
        Exists in TARDIS Data repo /home/runner/Downloads/tardis-data/kurucz_cd23_chianti_H_He.h5 (util.py:34)
[tardis.io.atom_data.base][INFO   ]
        Reading Atom Data with: UUID = 6f7b09e887a311e7a06b246e96350010 MD5  = 864f1753714343c41f99cb065710cace  (base.py:258)
[tardis.io.atom_data.base][INFO   ]
        Non provided Atomic Data: synpp_refs, photoionization_data, yg_data, two_photon_data, linelist_atoms, linelist_molecules (base.py:262)
[tardis.io.model.parse_density_configuration][WARNING]
        Number of density points larger than number of shells. Assuming inner point irrelevant (parse_density_configuration.py:114)
[tardis.model.matter.decay][INFO   ]
        Decaying abundances for 1123200.0 seconds (decay.py:101)

workflow.run()

[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 1 of 20 (v_inner_solver.py:413)
[py.warnings         ][WARNING]
        /home/runner/work/tardis/tardis/tardis/transport/montecarlo/montecarlo_main_loop.py:123: NumbaTypeSafetyWarning:

unsafe cast from uint64 to int64. Precision may be lost.

 (warnings.py:110)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 2 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 3 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 1/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 4 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 2/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 5 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 3/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 6 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Resized Geometry, Convergence Suppressed
          Old Geometry: [XXXXXXXXXXXXXXXXXXXX------------------------------]
          New Geometry: [XXXXXXXXXXXXXXXXXXX-------------------------------] (v_inner_solver.py:278)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 7 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 1/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 8 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 2/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 9 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 3/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting iteration 10 of 20 (v_inner_solver.py:413)
[tardis.workflows.v_inner_solver][INFO   ]
        Iteration converged 4/4 consecutive times. (v_inner_solver.py:305)
[tardis.workflows.v_inner_solver][INFO   ]

        Starting final iteration (v_inner_solver.py:455)

import matplotlib.pyplot as plt

spectrum = workflow.spectrum_solver.spectrum_real_packets
spectrum_virtual = workflow.spectrum_solver.spectrum_virtual_packets
spectrum_integrated = workflow.spectrum_solver.spectrum_integrated

[py.warnings         ][WARNING]
        /home/runner/work/tardis/tardis/tardis/spectrum/formal_integral.py:398: UserWarning:

The number of interpolate_shells was not specified. The value was set to 80.

 (warnings.py:110)

%matplotlib inline
plt.figure(figsize=(10, 6.5))

spectrum.plot(label="Normal packets")
spectrum_virtual.plot(label="Virtual packets")
spectrum_integrated.plot(label='Formal integral')

plt.xlim(500, 9000)
plt.title("TARDIS example model spectrum")
plt.xlabel(r"Wavelength [$\AA$]")
plt.ylabel(r"Luminosity density [erg/s/$\AA$]")
plt.legend()
plt.show()